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ffmpeg / libavformat / grab.c @ 7e33d3fe

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1
/*
2
 * Linux video grab interface
3
 * Copyright (c) 2000,2001 Fabrice Bellard.
4
 *
5
 * This file is part of FFmpeg.
6
 *
7
 * FFmpeg is free software; you can redistribute it and/or
8
 * modify it under the terms of the GNU Lesser General Public
9
 * License as published by the Free Software Foundation; either
10
 * version 2.1 of the License, or (at your option) any later version.
11
 *
12
 * FFmpeg is distributed in the hope that it will be useful,
13
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15
 * Lesser General Public License for more details.
16
 *
17
 * You should have received a copy of the GNU Lesser General Public
18
 * License along with FFmpeg; if not, write to the Free Software
19
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20
 */
21
#include "avformat.h"
22
#include "dsputil.h"
23
#include <unistd.h>
24
#include <fcntl.h>
25
#include <sys/ioctl.h>
26
#include <sys/mman.h>
27
#include <sys/time.h>
28
#define _LINUX_TIME_H 1
29
#include <linux/videodev.h>
30
#include <time.h>
31

    
32
typedef struct {
33
    int fd;
34
    int frame_format; /* see VIDEO_PALETTE_xxx */
35
    int use_mmap;
36
    int width, height;
37
    int frame_rate;
38
    int frame_rate_base;
39
    int64_t time_frame;
40
    int frame_size;
41
    struct video_capability video_cap;
42
    struct video_audio audio_saved;
43
    uint8_t *video_buf;
44
    struct video_mbuf gb_buffers;
45
    struct video_mmap gb_buf;
46
    int gb_frame;
47

    
48
    /* ATI All In Wonder specific stuff */
49
    /* XXX: remove and merge in libavcodec/imgconvert.c */
50
    int aiw_enabled;
51
    int deint;
52
    int halfw;
53
    uint8_t *src_mem;
54
    uint8_t *lum_m4_mem;
55
} VideoData;
56

    
57
struct {
58
    int palette;
59
    int depth;
60
    enum PixelFormat pix_fmt;
61
} video_formats [] = {
62
    {.palette = VIDEO_PALETTE_YUV420P, .depth = 12, .pix_fmt = PIX_FMT_YUV420P },
63
    {.palette = VIDEO_PALETTE_YUV422,  .depth = 16, .pix_fmt = PIX_FMT_YUYV422 },
64
    {.palette = VIDEO_PALETTE_UYVY,    .depth = 16, .pix_fmt = PIX_FMT_UYVY422 },
65
    {.palette = VIDEO_PALETTE_YUYV,    .depth = 16, .pix_fmt = PIX_FMT_YUYV422 },
66
    /* NOTE: v4l uses BGR24, not RGB24 */
67
    {.palette = VIDEO_PALETTE_RGB24,   .depth = 24, .pix_fmt = PIX_FMT_BGR24   },
68
    {.palette = VIDEO_PALETTE_RGB565,  .depth = 16, .pix_fmt = PIX_FMT_BGR565  },
69
    {.palette = VIDEO_PALETTE_GREY,    .depth = 8,  .pix_fmt = PIX_FMT_GRAY8   },
70
};
71

    
72

    
73
static int aiw_init(VideoData *s);
74
static int aiw_read_picture(VideoData *s, uint8_t *data);
75
static int aiw_close(VideoData *s);
76

    
77
static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
78
{
79
    VideoData *s = s1->priv_data;
80
    AVStream *st;
81
    int width, height;
82
    int video_fd, frame_size;
83
    int ret, frame_rate, frame_rate_base;
84
    int desired_palette, desired_depth;
85
    struct video_tuner tuner;
86
    struct video_audio audio;
87
    struct video_picture pict;
88
    int j;
89
    int vformat_num = sizeof(video_formats) / sizeof(video_formats[0]);
90

    
91
    if (ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0) {
92
        av_log(s1, AV_LOG_ERROR, "Bad capture size (%dx%d) or wrong time base (%d)\n",
93
            ap->width, ap->height, ap->time_base.den);
94

    
95
        return -1;
96
    }
97

    
98
    width = ap->width;
99
    height = ap->height;
100
    frame_rate      = ap->time_base.den;
101
    frame_rate_base = ap->time_base.num;
102

    
103
    if((unsigned)width > 32767 || (unsigned)height > 32767) {
104
        av_log(s1, AV_LOG_ERROR, "Capture size is out of range: %dx%d\n",
105
            width, height);
106

    
107
        return -1;
108
    }
109

    
110
    st = av_new_stream(s1, 0);
111
    if (!st)
112
        return AVERROR(ENOMEM);
113
    av_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */
114

    
115
    s->width = width;
116
    s->height = height;
117
    s->frame_rate      = frame_rate;
118
    s->frame_rate_base = frame_rate_base;
119

    
120
    video_fd = open(s1->filename, O_RDWR);
121
    if (video_fd < 0) {
122
        perror(s1->filename);
123
        goto fail;
124
    }
125

    
126
    if (ioctl(video_fd,VIDIOCGCAP, &s->video_cap) < 0) {
127
        perror("VIDIOCGCAP");
128
        goto fail;
129
    }
130

    
131
    if (!(s->video_cap.type & VID_TYPE_CAPTURE)) {
132
        av_log(s1, AV_LOG_ERROR, "Fatal: grab device does not handle capture\n");
133
        goto fail;
134
    }
135

    
136
    desired_palette = -1;
137
    desired_depth = -1;
138
    for (j = 0; j < vformat_num; j++) {
139
        if (ap->pix_fmt == video_formats[j].pix_fmt) {
140
            desired_palette = video_formats[j].palette;
141
            desired_depth = video_formats[j].depth;
142
            break;
143
        }
144
    }
145

    
146
    /* set tv standard */
147
    if (ap->standard && !ioctl(video_fd, VIDIOCGTUNER, &tuner)) {
148
        if (!strcasecmp(ap->standard, "pal"))
149
            tuner.mode = VIDEO_MODE_PAL;
150
        else if (!strcasecmp(ap->standard, "secam"))
151
            tuner.mode = VIDEO_MODE_SECAM;
152
        else
153
            tuner.mode = VIDEO_MODE_NTSC;
154
        ioctl(video_fd, VIDIOCSTUNER, &tuner);
155
    }
156

    
157
    /* unmute audio */
158
    audio.audio = 0;
159
    ioctl(video_fd, VIDIOCGAUDIO, &audio);
160
    memcpy(&s->audio_saved, &audio, sizeof(audio));
161
    audio.flags &= ~VIDEO_AUDIO_MUTE;
162
    ioctl(video_fd, VIDIOCSAUDIO, &audio);
163

    
164
    ioctl(video_fd, VIDIOCGPICT, &pict);
165
#if 0
166
    printf("v4l: colour=%d hue=%d brightness=%d constrast=%d whiteness=%d\n",
167
           pict.colour,
168
           pict.hue,
169
           pict.brightness,
170
           pict.contrast,
171
           pict.whiteness);
172
#endif
173
    /* try to choose a suitable video format */
174
    pict.palette = desired_palette;
175
    pict.depth= desired_depth;
176
    if (desired_palette == -1 || (ret = ioctl(video_fd, VIDIOCSPICT, &pict)) < 0) {
177
        for (j = 0; j < vformat_num; j++) {
178
            pict.palette = video_formats[j].palette;
179
            pict.depth = video_formats[j].depth;
180
            if (-1 != ioctl(video_fd, VIDIOCSPICT, &pict))
181
                break;
182
        }
183
        if (j >= vformat_num)
184
            goto fail1;
185
    }
186

    
187
    ret = ioctl(video_fd,VIDIOCGMBUF,&s->gb_buffers);
188
    if (ret < 0) {
189
        /* try to use read based access */
190
        struct video_window win;
191
        int val;
192

    
193
        win.x = 0;
194
        win.y = 0;
195
        win.width = width;
196
        win.height = height;
197
        win.chromakey = -1;
198
        win.flags = 0;
199

    
200
        ioctl(video_fd, VIDIOCSWIN, &win);
201

    
202
        s->frame_format = pict.palette;
203

    
204
        val = 1;
205
        ioctl(video_fd, VIDIOCCAPTURE, &val);
206

    
207
        s->time_frame = av_gettime() * s->frame_rate / s->frame_rate_base;
208
        s->use_mmap = 0;
209

    
210
        /* ATI All In Wonder automatic activation */
211
        if (!strcmp(s->video_cap.name, "Km")) {
212
            if (aiw_init(s) < 0)
213
                goto fail;
214
            s->aiw_enabled = 1;
215
            /* force 420P format because conversion from YUV422 to YUV420P
216
               is done in this driver (ugly) */
217
            s->frame_format = VIDEO_PALETTE_YUV420P;
218
        }
219
    } else {
220
        s->video_buf = mmap(0,s->gb_buffers.size,PROT_READ|PROT_WRITE,MAP_SHARED,video_fd,0);
221
        if ((unsigned char*)-1 == s->video_buf) {
222
            s->video_buf = mmap(0,s->gb_buffers.size,PROT_READ|PROT_WRITE,MAP_PRIVATE,video_fd,0);
223
            if ((unsigned char*)-1 == s->video_buf) {
224
                perror("mmap");
225
                goto fail;
226
            }
227
        }
228
        s->gb_frame = 0;
229
        s->time_frame = av_gettime() * s->frame_rate / s->frame_rate_base;
230

    
231
        /* start to grab the first frame */
232
        s->gb_buf.frame = s->gb_frame % s->gb_buffers.frames;
233
        s->gb_buf.height = height;
234
        s->gb_buf.width = width;
235
        s->gb_buf.format = pict.palette;
236

    
237
        ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
238
        if (ret < 0) {
239
            if (errno != EAGAIN) {
240
            fail1:
241
                av_log(s1, AV_LOG_ERROR, "Fatal: grab device does not support suitable format\n");
242
            } else {
243
                av_log(s1, AV_LOG_ERROR,"Fatal: grab device does not receive any video signal\n");
244
            }
245
            goto fail;
246
        }
247
        for (j = 1; j < s->gb_buffers.frames; j++) {
248
          s->gb_buf.frame = j;
249
          ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
250
        }
251
        s->frame_format = s->gb_buf.format;
252
        s->use_mmap = 1;
253
    }
254

    
255
    for (j = 0; j < vformat_num; j++) {
256
        if (s->frame_format == video_formats[j].palette) {
257
            frame_size = width * height * video_formats[j].depth / 8;
258
            st->codec->pix_fmt = video_formats[j].pix_fmt;
259
            break;
260
        }
261
    }
262

    
263
    if (j >= vformat_num)
264
        goto fail;
265

    
266
    s->fd = video_fd;
267
    s->frame_size = frame_size;
268

    
269
    st->codec->codec_type = CODEC_TYPE_VIDEO;
270
    st->codec->codec_id = CODEC_ID_RAWVIDEO;
271
    st->codec->width = width;
272
    st->codec->height = height;
273
    st->codec->time_base.den      = frame_rate;
274
    st->codec->time_base.num = frame_rate_base;
275
    st->codec->bit_rate = frame_size * 1/av_q2d(st->codec->time_base) * 8;
276

    
277
    return 0;
278
 fail:
279
    if (video_fd >= 0)
280
        close(video_fd);
281
    av_free(st);
282
    return AVERROR(EIO);
283
}
284

    
285
static int v4l_mm_read_picture(VideoData *s, uint8_t *buf)
286
{
287
    uint8_t *ptr;
288

    
289
    while (ioctl(s->fd, VIDIOCSYNC, &s->gb_frame) < 0 &&
290
           (errno == EAGAIN || errno == EINTR));
291

    
292
    ptr = s->video_buf + s->gb_buffers.offsets[s->gb_frame];
293
    memcpy(buf, ptr, s->frame_size);
294

    
295
    /* Setup to capture the next frame */
296
    s->gb_buf.frame = s->gb_frame;
297
    if (ioctl(s->fd, VIDIOCMCAPTURE, &s->gb_buf) < 0) {
298
        if (errno == EAGAIN)
299
            av_log(NULL, AV_LOG_ERROR, "Cannot Sync\n");
300
        else
301
            perror("VIDIOCMCAPTURE");
302
        return AVERROR(EIO);
303
    }
304

    
305
    /* This is now the grabbing frame */
306
    s->gb_frame = (s->gb_frame + 1) % s->gb_buffers.frames;
307

    
308
    return s->frame_size;
309
}
310

    
311
static int grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
312
{
313
    VideoData *s = s1->priv_data;
314
    int64_t curtime, delay;
315
    struct timespec ts;
316

    
317
    /* Calculate the time of the next frame */
318
    s->time_frame += INT64_C(1000000);
319

    
320
    /* wait based on the frame rate */
321
    for(;;) {
322
        curtime = av_gettime();
323
        delay = s->time_frame  * s->frame_rate_base / s->frame_rate - curtime;
324
        if (delay <= 0) {
325
            if (delay < INT64_C(-1000000) * s->frame_rate_base / s->frame_rate) {
326
                /* printf("grabbing is %d frames late (dropping)\n", (int) -(delay / 16666)); */
327
                s->time_frame += INT64_C(1000000);
328
            }
329
            break;
330
        }
331
        ts.tv_sec = delay / 1000000;
332
        ts.tv_nsec = (delay % 1000000) * 1000;
333
        nanosleep(&ts, NULL);
334
    }
335

    
336
    if (av_new_packet(pkt, s->frame_size) < 0)
337
        return AVERROR(EIO);
338

    
339
    pkt->pts = curtime;
340

    
341
    /* read one frame */
342
    if (s->aiw_enabled) {
343
        return aiw_read_picture(s, pkt->data);
344
    } else if (s->use_mmap) {
345
        return v4l_mm_read_picture(s, pkt->data);
346
    } else {
347
        if (read(s->fd, pkt->data, pkt->size) != pkt->size)
348
            return AVERROR(EIO);
349
        return s->frame_size;
350
    }
351
}
352

    
353
static int grab_read_close(AVFormatContext *s1)
354
{
355
    VideoData *s = s1->priv_data;
356

    
357
    if (s->aiw_enabled)
358
        aiw_close(s);
359

    
360
    if (s->use_mmap)
361
        munmap(s->video_buf, s->gb_buffers.size);
362

    
363
    /* mute audio. we must force it because the BTTV driver does not
364
       return its state correctly */
365
    s->audio_saved.flags |= VIDEO_AUDIO_MUTE;
366
    ioctl(s->fd, VIDIOCSAUDIO, &s->audio_saved);
367

    
368
    close(s->fd);
369
    return 0;
370
}
371

    
372
AVInputFormat video_grab_v4l_demuxer = {
373
    "video4linux",
374
    "video grab",
375
    sizeof(VideoData),
376
    NULL,
377
    grab_read_header,
378
    grab_read_packet,
379
    grab_read_close,
380
    .flags = AVFMT_NOFILE,
381
};
382

    
383
/* All in Wonder specific stuff */
384
/* XXX: remove and merge in libavcodec/imgconvert.c */
385

    
386
static int aiw_init(VideoData *s)
387
{
388
    int width, height;
389

    
390
    width = s->width;
391
    height = s->height;
392

    
393
    if ((width == s->video_cap.maxwidth && height == s->video_cap.maxheight) ||
394
        (width == s->video_cap.maxwidth && height == s->video_cap.maxheight*2) ||
395
        (width == s->video_cap.maxwidth/2 && height == s->video_cap.maxheight)) {
396

    
397
        s->deint=0;
398
        s->halfw=0;
399
        if (height == s->video_cap.maxheight*2) s->deint=1;
400
        if (width == s->video_cap.maxwidth/2) s->halfw=1;
401
    } else {
402
        av_log(NULL, AV_LOG_ERROR, "\nIncorrect Grab Size Supplied - Supported Sizes Are:\n");
403
        av_log(NULL, AV_LOG_ERROR, " %dx%d  %dx%d %dx%d\n\n",
404
                s->video_cap.maxwidth,s->video_cap.maxheight,
405
                s->video_cap.maxwidth,s->video_cap.maxheight*2,
406
                s->video_cap.maxwidth/2,s->video_cap.maxheight);
407
        goto fail;
408
    }
409

    
410
    if (s->halfw == 0) {
411
        s->src_mem = av_malloc(s->width*2);
412
    } else {
413
        s->src_mem = av_malloc(s->width*4);
414
    }
415
    if (!s->src_mem) goto fail;
416

    
417
    s->lum_m4_mem = av_malloc(s->width);
418
    if (!s->lum_m4_mem)
419
        goto fail;
420
    return 0;
421
 fail:
422
    av_freep(&s->src_mem);
423
    av_freep(&s->lum_m4_mem);
424
    return -1;
425
}
426

    
427
#ifdef HAVE_MMX
428
#include "i386/mmx.h"
429

    
430
#define LINE_WITH_UV \
431
                    movq_m2r(ptr[0],mm0); \
432
                    movq_m2r(ptr[8],mm1);  \
433
                    movq_r2r(mm0, mm4); \
434
                    punpcklbw_r2r(mm1,mm0); \
435
                    punpckhbw_r2r(mm1,mm4); \
436
                    movq_r2r(mm0,mm5); \
437
                    punpcklbw_r2r(mm4,mm0); \
438
                    punpckhbw_r2r(mm4,mm5); \
439
                    movq_r2r(mm0,mm1); \
440
                    punpcklbw_r2r(mm5,mm1); \
441
                    movq_r2m(mm1,lum[0]); \
442
                    movq_m2r(ptr[16],mm2); \
443
                    movq_m2r(ptr[24],mm1); \
444
                    movq_r2r(mm2,mm4); \
445
                    punpcklbw_r2r(mm1,mm2); \
446
                    punpckhbw_r2r(mm1,mm4); \
447
                    movq_r2r(mm2,mm3); \
448
                    punpcklbw_r2r(mm4,mm2); \
449
                    punpckhbw_r2r(mm4,mm3); \
450
                    movq_r2r(mm2,mm1); \
451
                    punpcklbw_r2r(mm3,mm1); \
452
                    movq_r2m(mm1,lum[8]); \
453
                    punpckhdq_r2r(mm2,mm0); \
454
                    punpckhdq_r2r(mm3,mm5); \
455
                    movq_r2m(mm0,cb[0]); \
456
                    movq_r2m(mm5,cr[0]);
457

    
458
#define LINE_NO_UV \
459
                    movq_m2r(ptr[0],mm0);\
460
                    movq_m2r(ptr[8],mm1);\
461
                    movq_r2r(mm0, mm4);\
462
                    punpcklbw_r2r(mm1,mm0); \
463
                    punpckhbw_r2r(mm1,mm4);\
464
                    movq_r2r(mm0,mm5);\
465
                    punpcklbw_r2r(mm4,mm0);\
466
                    punpckhbw_r2r(mm4,mm5);\
467
                    movq_r2r(mm0,mm1);\
468
                    punpcklbw_r2r(mm5,mm1);\
469
                    movq_r2m(mm1,lum[0]);\
470
                    movq_m2r(ptr[16],mm2);\
471
                    movq_m2r(ptr[24],mm1);\
472
                    movq_r2r(mm2,mm4);\
473
                    punpcklbw_r2r(mm1,mm2);\
474
                    punpckhbw_r2r(mm1,mm4);\
475
                    movq_r2r(mm2,mm3);\
476
                    punpcklbw_r2r(mm4,mm2);\
477
                    punpckhbw_r2r(mm4,mm3);\
478
                    movq_r2r(mm2,mm1);\
479
                    punpcklbw_r2r(mm3,mm1);\
480
                    movq_r2m(mm1,lum[8]);
481

    
482
#define LINE_WITHUV_AVG \
483
                    movq_m2r(ptr[0], mm0);\
484
                    movq_m2r(ptr[8], mm1);\
485
                    movq_r2r(mm0, mm4);\
486
                    punpcklbw_r2r(mm1,mm0);\
487
                    punpckhbw_r2r(mm1,mm4);\
488
                    movq_r2r(mm0,mm5);\
489
                    punpcklbw_r2r(mm4,mm0);\
490
                    punpckhbw_r2r(mm4,mm5);\
491
                    movq_r2r(mm0,mm1);\
492
                    movq_r2r(mm5,mm2);\
493
                    punpcklbw_r2r(mm7,mm1);\
494
                    punpcklbw_r2r(mm7,mm2);\
495
                    paddw_r2r(mm6,mm1);\
496
                    paddw_r2r(mm2,mm1);\
497
                    psraw_i2r(1,mm1);\
498
                    packuswb_r2r(mm7,mm1);\
499
                    movd_r2m(mm1,lum[0]);\
500
                    movq_m2r(ptr[16],mm2);\
501
                    movq_m2r(ptr[24],mm1);\
502
                    movq_r2r(mm2,mm4);\
503
                    punpcklbw_r2r(mm1,mm2);\
504
                    punpckhbw_r2r(mm1,mm4);\
505
                    movq_r2r(mm2,mm3);\
506
                    punpcklbw_r2r(mm4,mm2);\
507
                    punpckhbw_r2r(mm4,mm3);\
508
                    movq_r2r(mm2,mm1);\
509
                    movq_r2r(mm3,mm4);\
510
                    punpcklbw_r2r(mm7,mm1);\
511
                    punpcklbw_r2r(mm7,mm4);\
512
                    paddw_r2r(mm6,mm1);\
513
                    paddw_r2r(mm4,mm1);\
514
                    psraw_i2r(1,mm1);\
515
                    packuswb_r2r(mm7,mm1);\
516
                    movd_r2m(mm1,lum[4]);\
517
                    punpckhbw_r2r(mm7,mm0);\
518
                    punpckhbw_r2r(mm7,mm2);\
519
                    paddw_r2r(mm6,mm0);\
520
                    paddw_r2r(mm2,mm0);\
521
                    psraw_i2r(1,mm0);\
522
                    packuswb_r2r(mm7,mm0);\
523
                    punpckhbw_r2r(mm7,mm5);\
524
                    punpckhbw_r2r(mm7,mm3);\
525
                    paddw_r2r(mm6,mm5);\
526
                    paddw_r2r(mm3,mm5);\
527
                    psraw_i2r(1,mm5);\
528
                    packuswb_r2r(mm7,mm5);\
529
                    movd_r2m(mm0,cb[0]);\
530
                    movd_r2m(mm5,cr[0]);
531

    
532
#define LINE_NOUV_AVG \
533
                    movq_m2r(ptr[0],mm0);\
534
                    movq_m2r(ptr[8],mm1);\
535
                    pand_r2r(mm5,mm0);\
536
                    pand_r2r(mm5,mm1);\
537
                    pmaddwd_r2r(mm6,mm0);\
538
                    pmaddwd_r2r(mm6,mm1);\
539
                    packssdw_r2r(mm1,mm0);\
540
                    paddw_r2r(mm6,mm0);\
541
                    psraw_i2r(1,mm0);\
542
                    movq_m2r(ptr[16],mm2);\
543
                    movq_m2r(ptr[24],mm3);\
544
                    pand_r2r(mm5,mm2);\
545
                    pand_r2r(mm5,mm3);\
546
                    pmaddwd_r2r(mm6,mm2);\
547
                    pmaddwd_r2r(mm6,mm3);\
548
                    packssdw_r2r(mm3,mm2);\
549
                    paddw_r2r(mm6,mm2);\
550
                    psraw_i2r(1,mm2);\
551
                    packuswb_r2r(mm2,mm0);\
552
                    movq_r2m(mm0,lum[0]);
553

    
554
#define DEINT_LINE_LUM(ptroff) \
555
                    movd_m2r(lum_m4[(ptroff)],mm0);\
556
                    movd_m2r(lum_m3[(ptroff)],mm1);\
557
                    movd_m2r(lum_m2[(ptroff)],mm2);\
558
                    movd_m2r(lum_m1[(ptroff)],mm3);\
559
                    movd_m2r(lum[(ptroff)],mm4);\
560
                    punpcklbw_r2r(mm7,mm0);\
561
                    movd_r2m(mm2,lum_m4[(ptroff)]);\
562
                    punpcklbw_r2r(mm7,mm1);\
563
                    punpcklbw_r2r(mm7,mm2);\
564
                    punpcklbw_r2r(mm7,mm3);\
565
                    punpcklbw_r2r(mm7,mm4);\
566
                    psllw_i2r(2,mm1);\
567
                    psllw_i2r(1,mm2);\
568
                    paddw_r2r(mm6,mm1);\
569
                    psllw_i2r(2,mm3);\
570
                    paddw_r2r(mm2,mm1);\
571
                    paddw_r2r(mm4,mm0);\
572
                    paddw_r2r(mm3,mm1);\
573
                    psubusw_r2r(mm0,mm1);\
574
                    psrlw_i2r(3,mm1);\
575
                    packuswb_r2r(mm7,mm1);\
576
                    movd_r2m(mm1,lum_m2[(ptroff)]);
577

    
578
#else
579
#include "dsputil.h"
580

    
581
#define LINE_WITH_UV \
582
                    lum[0]=ptr[0];lum[1]=ptr[2];lum[2]=ptr[4];lum[3]=ptr[6];\
583
                    cb[0]=ptr[1];cb[1]=ptr[5];\
584
                    cr[0]=ptr[3];cr[1]=ptr[7];\
585
                    lum[4]=ptr[8];lum[5]=ptr[10];lum[6]=ptr[12];lum[7]=ptr[14];\
586
                    cb[2]=ptr[9];cb[3]=ptr[13];\
587
                    cr[2]=ptr[11];cr[3]=ptr[15];\
588
                    lum[8]=ptr[16];lum[9]=ptr[18];lum[10]=ptr[20];lum[11]=ptr[22];\
589
                    cb[4]=ptr[17];cb[5]=ptr[21];\
590
                    cr[4]=ptr[19];cr[5]=ptr[23];\
591
                    lum[12]=ptr[24];lum[13]=ptr[26];lum[14]=ptr[28];lum[15]=ptr[30];\
592
                    cb[6]=ptr[25];cb[7]=ptr[29];\
593
                    cr[6]=ptr[27];cr[7]=ptr[31];
594

    
595
#define LINE_NO_UV \
596
                    lum[0]=ptr[0];lum[1]=ptr[2];lum[2]=ptr[4];lum[3]=ptr[6];\
597
                    lum[4]=ptr[8];lum[5]=ptr[10];lum[6]=ptr[12];lum[7]=ptr[14];\
598
                    lum[8]=ptr[16];lum[9]=ptr[18];lum[10]=ptr[20];lum[11]=ptr[22];\
599
                    lum[12]=ptr[24];lum[13]=ptr[26];lum[14]=ptr[28];lum[15]=ptr[30];
600

    
601
#define LINE_WITHUV_AVG \
602
                    sum=(ptr[0]+ptr[2]+1) >> 1;lum[0]=sum; \
603
                    sum=(ptr[4]+ptr[6]+1) >> 1;lum[1]=sum; \
604
                    sum=(ptr[1]+ptr[5]+1) >> 1;cb[0]=sum; \
605
                    sum=(ptr[3]+ptr[7]+1) >> 1;cr[0]=sum; \
606
                    sum=(ptr[8]+ptr[10]+1) >> 1;lum[2]=sum; \
607
                    sum=(ptr[12]+ptr[14]+1) >> 1;lum[3]=sum; \
608
                    sum=(ptr[9]+ptr[13]+1) >> 1;cb[1]=sum; \
609
                    sum=(ptr[11]+ptr[15]+1) >> 1;cr[1]=sum; \
610
                    sum=(ptr[16]+ptr[18]+1) >> 1;lum[4]=sum; \
611
                    sum=(ptr[20]+ptr[22]+1) >> 1;lum[5]=sum; \
612
                    sum=(ptr[17]+ptr[21]+1) >> 1;cb[2]=sum; \
613
                    sum=(ptr[19]+ptr[23]+1) >> 1;cr[2]=sum; \
614
                    sum=(ptr[24]+ptr[26]+1) >> 1;lum[6]=sum; \
615
                    sum=(ptr[28]+ptr[30]+1) >> 1;lum[7]=sum; \
616
                    sum=(ptr[25]+ptr[29]+1) >> 1;cb[3]=sum; \
617
                    sum=(ptr[27]+ptr[31]+1) >> 1;cr[3]=sum;
618

    
619
#define LINE_NOUV_AVG \
620
                    sum=(ptr[0]+ptr[2]+1) >> 1;lum[0]=sum; \
621
                    sum=(ptr[4]+ptr[6]+1) >> 1;lum[1]=sum; \
622
                    sum=(ptr[8]+ptr[10]+1) >> 1;lum[2]=sum; \
623
                    sum=(ptr[12]+ptr[14]+1) >> 1;lum[3]=sum; \
624
                    sum=(ptr[16]+ptr[18]+1) >> 1;lum[4]=sum; \
625
                    sum=(ptr[20]+ptr[22]+1) >> 1;lum[5]=sum; \
626
                    sum=(ptr[24]+ptr[26]+1) >> 1;lum[6]=sum; \
627
                    sum=(ptr[28]+ptr[30]+1) >> 1;lum[7]=sum;
628

    
629
#define DEINT_LINE_LUM(ptroff) \
630
                    sum=(-lum_m4[(ptroff)]+(lum_m3[(ptroff)]<<2)+(lum_m2[(ptroff)]<<1)+(lum_m1[(ptroff)]<<2)-lum[(ptroff)]); \
631
                    lum_m4[(ptroff)]=lum_m2[(ptroff)];\
632
                    lum_m2[(ptroff)]=cm[(sum+4)>>3];\
633
                    sum=(-lum_m4[(ptroff)+1]+(lum_m3[(ptroff)+1]<<2)+(lum_m2[(ptroff)+1]<<1)+(lum_m1[(ptroff)+1]<<2)-lum[(ptroff)+1]); \
634
                    lum_m4[(ptroff)+1]=lum_m2[(ptroff)+1];\
635
                    lum_m2[(ptroff)+1]=cm[(sum+4)>>3];\
636
                    sum=(-lum_m4[(ptroff)+2]+(lum_m3[(ptroff)+2]<<2)+(lum_m2[(ptroff)+2]<<1)+(lum_m1[(ptroff)+2]<<2)-lum[(ptroff)+2]); \
637
                    lum_m4[(ptroff)+2]=lum_m2[(ptroff)+2];\
638
                    lum_m2[(ptroff)+2]=cm[(sum+4)>>3];\
639
                    sum=(-lum_m4[(ptroff)+3]+(lum_m3[(ptroff)+3]<<2)+(lum_m2[(ptroff)+3]<<1)+(lum_m1[(ptroff)+3]<<2)-lum[(ptroff)+3]); \
640
                    lum_m4[(ptroff)+3]=lum_m2[(ptroff)+3];\
641
                    lum_m2[(ptroff)+3]=cm[(sum+4)>>3];
642

    
643
#endif
644

    
645

    
646
/* Read two fields separately. */
647
static int aiw_read_picture(VideoData *s, uint8_t *data)
648
{
649
    uint8_t *ptr, *lum, *cb, *cr;
650
    int h;
651
#ifndef HAVE_MMX
652
    int sum;
653
#endif
654
    uint8_t* src = s->src_mem;
655
    uint8_t *ptrend = &src[s->width*2];
656
    lum=data;
657
    cb=&lum[s->width*s->height];
658
    cr=&cb[(s->width*s->height)/4];
659
    if (s->deint == 0 && s->halfw == 0) {
660
        while (read(s->fd,src,s->width*2) < 0) {
661
            usleep(100);
662
        }
663
        for (h = 0; h < s->height-2; h+=2) {
664
            for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
665
                LINE_WITH_UV
666
                    }
667
            read(s->fd,src,s->width*2);
668
            for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16) {
669
                LINE_NO_UV
670
                    }
671
            read(s->fd,src,s->width*2);
672
        }
673
        /*
674
         * Do last two lines
675
         */
676
        for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
677
            LINE_WITH_UV
678
                }
679
        read(s->fd,src,s->width*2);
680
        for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16) {
681
            LINE_NO_UV
682
                }
683
        /* drop second field */
684
        while (read(s->fd,src,s->width*2) < 0) {
685
            usleep(100);
686
        }
687
        for (h = 0; h < s->height - 1; h++) {
688
            read(s->fd,src,s->width*2);
689
        }
690
    } else if (s->halfw == 1) {
691
#ifdef HAVE_MMX
692
        mmx_t rounder;
693
        mmx_t masker;
694
        rounder.uw[0]=1;
695
        rounder.uw[1]=1;
696
        rounder.uw[2]=1;
697
        rounder.uw[3]=1;
698
        masker.ub[0]=0xff;
699
        masker.ub[1]=0;
700
        masker.ub[2]=0xff;
701
        masker.ub[3]=0;
702
        masker.ub[4]=0xff;
703
        masker.ub[5]=0;
704
        masker.ub[6]=0xff;
705
        masker.ub[7]=0;
706
        pxor_r2r(mm7,mm7);
707
        movq_m2r(rounder,mm6);
708
#endif
709
        while (read(s->fd,src,s->width*4) < 0) {
710
            usleep(100);
711
        }
712
        ptrend = &src[s->width*4];
713
        for (h = 0; h < s->height-2; h+=2) {
714
            for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8, cb+=4, cr+=4) {
715
                LINE_WITHUV_AVG
716
                    }
717
            read(s->fd,src,s->width*4);
718
#ifdef HAVE_MMX
719
            movq_m2r(masker,mm5);
720
#endif
721
            for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8) {
722
                LINE_NOUV_AVG
723
                    }
724
            read(s->fd,src,s->width*4);
725
        }
726
        /*
727
 * Do last two lines
728
 */
729
        for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8, cb+=4, cr+=4) {
730
            LINE_WITHUV_AVG
731
                }
732
        read(s->fd,src,s->width*4);
733
#ifdef HAVE_MMX
734
        movq_m2r(masker,mm5);
735
#endif
736
        for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8) {
737
            LINE_NOUV_AVG
738
                }
739
        /* drop second field */
740
        while (read(s->fd,src,s->width*4) < 0) {
741
            usleep(100);
742
        }
743
        for (h = 0; h < s->height - 1; h++) {
744
            read(s->fd,src,s->width*4);
745
        }
746
    } else {
747
        uint8_t *lum_m1, *lum_m2, *lum_m3, *lum_m4;
748
#ifdef HAVE_MMX
749
        mmx_t rounder;
750
        rounder.uw[0]=4;
751
        rounder.uw[1]=4;
752
        rounder.uw[2]=4;
753
        rounder.uw[3]=4;
754
        movq_m2r(rounder,mm6);
755
        pxor_r2r(mm7,mm7);
756
#else
757
        uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
758
#endif
759

    
760
        /* read two fields and deinterlace them */
761
        while (read(s->fd,src,s->width*2) < 0) {
762
            usleep(100);
763
        }
764
        for (h = 0; h < (s->height/2)-2; h+=2) {
765
            for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
766
                LINE_WITH_UV
767
                    }
768
            read(s->fd,src,s->width*2);
769
            /* skip a luminance line - will be filled in later */
770
            lum += s->width;
771
            for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
772
                LINE_WITH_UV
773
                    }
774
            /* skip a luminance line - will be filled in later */
775
            lum += s->width;
776
            read(s->fd,src,s->width*2);
777
        }
778
        /*
779
 * Do last two lines
780
 */
781
        for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
782
            LINE_WITH_UV
783
                }
784
        /* skip a luminance line - will be filled in later */
785
        lum += s->width;
786
        read(s->fd,src,s->width*2);
787
        for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
788
            LINE_WITH_UV
789
                }
790
        /*
791
 *
792
 * SECOND FIELD
793
 *
794
 */
795
        lum=&data[s->width];
796
        while (read(s->fd,src,s->width*2) < 0) {
797
            usleep(10);
798
        }
799
        /* First (and last) two lines not interlaced */
800
        for (h = 0; h < 2; h++) {
801
            for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16) {
802
                LINE_NO_UV
803
                    }
804
            read(s->fd,src,s->width*2);
805
            /* skip a luminance line */
806
            lum += s->width;
807
        }
808
        lum_m1=&lum[-s->width];
809
        lum_m2=&lum_m1[-s->width];
810
        lum_m3=&lum_m2[-s->width];
811
        memmove(s->lum_m4_mem,&lum_m3[-s->width],s->width);
812
        for (; h < (s->height/2)-1; h++) {
813
            lum_m4=s->lum_m4_mem;
814
            for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16,lum_m1+=16,lum_m2+=16,lum_m3+=16,lum_m4+=16) {
815
                LINE_NO_UV
816

    
817
                    DEINT_LINE_LUM(0)
818
                    DEINT_LINE_LUM(4)
819
                    DEINT_LINE_LUM(8)
820
                    DEINT_LINE_LUM(12)
821
                    }
822
            read(s->fd,src,s->width*2);
823
            /* skip a luminance line */
824
            lum += s->width;
825
            lum_m1 += s->width;
826
            lum_m2 += s->width;
827
            lum_m3 += s->width;
828
            //                lum_m4 += s->width;
829
        }
830
        /*
831
 * Do last line
832
 */
833
        lum_m4=s->lum_m4_mem;
834
        for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, lum_m1+=16, lum_m2+=16, lum_m3+=16, lum_m4+=16) {
835
            LINE_NO_UV
836

    
837
                DEINT_LINE_LUM(0)
838
                DEINT_LINE_LUM(4)
839
                DEINT_LINE_LUM(8)
840
                DEINT_LINE_LUM(12)
841
                }
842
    }
843
    emms_c();
844
    return s->frame_size;
845
}
846

    
847
static int aiw_close(VideoData *s)
848
{
849
    av_freep(&s->lum_m4_mem);
850
    av_freep(&s->src_mem);
851
    return 0;
852
}